Data on historical diphtheria cases in the United States, compiled from a selection of sources from the US CDC.

Sources for each year are as follows:

• 1937: Public Health Reports, Vol. 53, No. 44 - Health Conditions in the United States as Indicated by Mortality Rates, 1929-38

• 1944-1993:Morbidity and Mortality Weekly Report Annual Supplement Summary 1993 Vol. 42, No. 53 by the Centers for Disease Control and Prevention (CDC), US Public Health Service

• 1994: Summary of Notifiable Diseases, United States, 1994

• 1995: Summary of Notifiable Diseases, United States, 1995

• 1996: Summary of Notifiable Diseases, United States, 1996

• 1997: Summary of Notifiable Diseases, United States, 1997

• 1998: Summary of Notifiable Diseases, United States, 1998

• 1999: Summary of Notifiable Diseases, United States, 1999

• 2000: Historical Summaries of Notifiable Diseases in the United States, 1969–2000

• 2001-2006: Historical Summaries of Notifiable Diseases in the United States, 1975–2006

• 2007: Summary of Notifiable Diseases, United States, 2007

• 2008: Summary of Notifiable Diseases, United States, 2008

• 2009: Summary of Notifiable Diseases, United States, 2009

• 2010: Summary of Notifiable Diseases, United States, 2010

• 2011: Summary of Notifiable Diseases, United States, 2011

• 2012: Summary of Notifiable Diseases, United States, 2012

• 2013: Summary of Notifiable Diseases, United States, 2013

• 2014: Summary of Notifiable Diseases, United States, 2014

• 2015: Summary of Notifiable Diseases, United States, 2015

• 2016-2022: National Notifiable Diseases Surveillance System (NNDSS)